Bill Saettle, Technology Transfer and Partnerships Office (TTPO), staffed the Technology Transfer exhibit that featured information on NASA spin-offs. Many of the guests attending the Open House were surprised to hear about the many ways in which NASA technology touches their everyday lives. />/> Image credit: NASA/Marvin Smith (WYLE) C-2008-1234 Topic: Technology Transfer Source: http://www.nasa.gov/centers/glenn/news/AF/2008/July08_PBS-Image5.html
The design process associated with large engineering systems requires an initial decomposition of the complex system into modules of design tasks which are coupled through the transference of output data. In analyzing or optimizing such a coupled system, it is essential to be able to determine which interactions figure prominently enough to significantly affect the accuracy of the system solution. Many decomposition approaches assume the capability is available to determine what design tasks... Topics: SOFTWARE ENGINEERING, COMPUTER PROGRAMMING, HYPOTHESES, TECHNOLOGY TRANSFER
Poly(arylene ether)s containing pendent ethynyl and substituted ethynyl groups and poly(arylene ether) copolymers containing pendent ethynyl and substituted ethynyl groups are readily prepared from bisphenols containing ethynyl and substituted ethynyl groups. The resulting polymers are cured up to 350 C to provide crosslinked poly(arylene ether)s with good solvent resistance, high strength and modulus. Topics: INTELLECTUAL PROPERTY, NASA PROGRAMS, SECURITY, TECHNOLOGY TRANSFER
byMilholen, William E., II; Chokani, Ndaona; McGhee, Robert J
A computational investigation was performed to support the development of a semispan model test capability in the NASA Langley Research Center's National Transonic Facility. This capability is desirable for the testing of advanced subsonic transport aircraft at full-scale Reynolds numbers. A state-of-the-art three-dimensional Navier-Stokes solver was used to examine methods to improve the flow over a semi-span configuration. First, a parametric study is conducted to examine the influence of the... Topics: TECHNOLOGY TRANSFER, TECHNOLOGY UTILIZATION, ENGINEERS, LANGUAGES
A simple, application-oriented, transfer function model of paralleled converters employing Master-Slave Current-sharing (MSC) control is developed. Dynamically, the Master converter retains its original design characteristics; all the Slave converters are forced to depart significantly from their original design characteristics into current-controlled current sources. Five distinct loop gains to assess system stability and performance are identified and their physical significance is described.... Topics: INDUSTRIES, CONFERENCES, TECHNOLOGY TRANSFER, RESEARCH, SCIENCE, ENGINEERING
A procedure was developed to calculate the critical fuel mass, including the effects of propellant pressure, for coaxial-flow gas-core reactors operating at 196,600 newtons thrust and 4400 seconds specific impulse. Data were generated for a range of cavity diameter, reflector-moderator thickness, and quantity of structural material. Also presented are such core characteristics as upper limits on cavity pressure, spectral hardening in very-high-temperature hydrogen, and reactivity coefficients. Topics: COMPUTER PROGRAMMING, NASA PROGRAMS, STRUCTURAL ANALYSIS, COST ANALYSIS, TECHNOLOGY TRANSFER
The 4th annual Technology Transfer Conference will be help April 29, 2011 at the Tivoli in downtown Chattanooga. The conference will showcase technology transfer opportunities in the region with a focus on technology based economic development. The keynote speaker is Dave Parker. Panel discussions and project presentations will offer conference participants the opportunity to learn about new technologies and how to bring their visions to the market. Around and About is a production of WUTC in... Topics: Technology Transfer Conference, commercial products, inventions, enterprise, Chattanooga
A user's manual for a one dimensional thermal model to predict the temperature profiles of a deep body of water for any number of annual cycles is presented. The model is essentially a set of partial differential equations which are solved by finite difference methods using a high speed digital computer. The model features the effects of area change with depth, nonlinear interaction of wind generated turbulence and buoyancy, adsorption of radiative heat flux below the surface, thermal... Topics: COMMUNICATING, INFORMATION DISSEMINATION, TECHNICAL WRITING, DOCUMENTATION, INFORMATION MANAGEMENT,...
byPamadi, Bandu N.; Brauckmann, Gregory J.; Ruth, Michael J.; Fuhrmann, Henri D
An overview of the aerodynamic characteristics, development of the preflight aerodynamic database and flight simulation of the NASA/Orbital X-34 vehicle is presented in this paper. To develop the aerodynamic database, wind tunnel tests from subsonic to hypersonic Mach numbers including ground effect tests at low subsonic speeds were conducted in various facilities at the NASA Langley Research Center. Where wind tunnel test data was not available, engineering level analysis is used to fill the... Topics: NASA PROGRAMS, TECHNOLOGY UTILIZATION, GOVERNMENT/INDUSTRY RELATIONS, COMMERCIALIZATION, TECHNOLOGY...
An extended kappa-epsilon turbulence model is proposed and tested with successful results. An improved transport equation for the rate of dissipation of the turbulent kinetic energy, epsilon, is proposed. The proposed model gives more effective response to the energy production rate than does the standard kappa-epsilon turbulence model. An extra time scale of the production range is included in the dissipation rate equation. This enables the present model to perform equally well for several... Topics: AEROSPACE TECHNOLOGY TRANSFER, INDEXES (DOCUMENTATION), SCIENTISTS, DOCUMENTS, REPORTS
The Mississippi Technology Transfer Center at the John C. Stennis Space Center in Hancock County, Miss., was officially dedicated in 1987. The center is home to several state agencies as well as the Center For Higher Learning. Topics: facilities, technology transfer, Where -- Mississippi, Where -- Stennis Space Center (SSC) Source: http://www.ssc.nasa.gov/sirs/
Accelerated tests for composite failure were investigated. Constant ramp transverse strength tests on thermoplastic composite specimens were conducted at four temperatures from 300 F to 450 F and five duration times from 0.5 sec to 24 hrs. Up to 400 F, the time-temperature-superposition method produces a master curve allowing strength at longer times to be estimated from strength tests conducted over shorter times but at higher temperatures. The shift factors derived from compliance tests... Topics: TECHNOLOGY UTILIZATION, FOOD, AEROSPACE TECHNOLOGY TRANSFER, NUTRITION, ALGAE